TITLE:   GCN CIRCULAR
NUMBER:  37256
SUBJECT: GRB 240824A: KAIT optical upper limit
DATE:    24/08/24 04:23:39 GMT
FROM:    Weikang Zheng at UC Berkeley <weikang@berkeley.edu>

WeiKang Zheng and Alexei V. Filippenko (UC Berkeley) report on

behalf of the KAIT GRB team:


The 0.76-m Katzman Automatic Imaging Telescope (KAIT), located at

Lick Observatory, responded to the Swift GRB 240824A (Cenko et al.,

GCN 37254) starting at 03:43:04 UT, ~2.67 hours after the burst.

Observations were performed in the clear (roughly R) filter in

twilight condition. A total of 5 x 60s images were obtained. We did

not detect the optical afterglow reported by Dutton et al. (GCN 37255)

in our coadd image, which we estimate the limiting magnitude be ~18.5

mag, indicating the afterglow reported by Dutton et al. (GCN 37255)

has likely faded.